{"answers":{"affected":"3 open source packages ship an affected version, including zbar. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-40889 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2023-40889 is a critical memory corruption vulnerability in n/a, published on 29 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-40889 and fix it if it is affected.\n\nWhat it is: CVE-2023-40889 is a critical memory corruption vulnerability in n/a, published on 29 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-40889 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- zbar (PyPI): affected all versions up to 0.23.90; no fix listed\n- zbar (PyPI): affected all versions up to 0.23.90; no fix listed\n- zbar (PyPI): affected all versions up to 0.23.90; no fix listed\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-40889/ (Markdown: https://insights.sbomify.com/CVE-2023-40889/index.md)","id":"CVE-2023-40889","markdown":"https://insights.sbomify.com/CVE-2023-40889/index.md","name":"CVE-2023-40889","record":{"aliases":["DEBIAN-CVE-2023-40889","GHSA-mhp6-jvpx-2p4m","PYSEC-2026-576","UBUNTU-CVE-2023-40889"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"ZBar QR code library","requires_auth":"none","summary":"A heap-based buffer overflow in ZBar allows attackers to execute arbitrary code or disclose information via crafted QR codes.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"zbar","vendor":"zbar_project"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"A heap-based buffer overflow exists in the qr_reader_match_centers function of ZBar 0.23.90. Specially crafted QR codes may lead to information disclosure and/or arbitrary code execution. To trigger this vulnerability, an attacker can digitally input the malicious QR code, or prepare it to be physically scanned by the vulnerable scanner.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Heap-based buffer overflow in ZBar","id":"CVE-2023-40889","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"memory_corruption","year":"2023"},"n_packages":3,"n_references":4,"next":{"headline":"Memory corruption in n/a","id":"CVE-2023-40890"},"packages":[{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["0.23.90"],"package":"zbar","purl":null,"source":"GHSA-mhp6-jvpx-2p4m"},{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["0.23.90"],"package":"zbar","purl":"pkg:pypi/zbar","source":"GHSA-mhp6-jvpx-2p4m"},{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["0.23.90"],"package":"zbar","purl":"pkg:pypi/zbar","source":"PYSEC-2026-576"}],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2023-40877"},"products":["n/a"],"published":"2023-08-29","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2023-40890","kev_date_added":null,"published":"2023-08-29"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2025-11-04","vendors":["n/a"]},"summary":"A heap-based buffer overflow in ZBar allows attackers to execute arbitrary code or disclose information via crafted QR codes.","url":"https://insights.sbomify.com/CVE-2023-40889/"}